Rattle the cage
Meaning
Disturb those in power or provoke change.
Usage
Used when pressuring institutions.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Imagery of annoying caged animals until they react.
Used in political journalism to describe agitation.